Home / Free tools / Phone number lookup / 888-899-6650
Who called me from 888-899-6650?
Transworld Systems Inc., often called TSI. New York City's licence records list 888-899-6650 as the contact phone on several Transworld Systems debt collection licences, including active ones. TSI collects debts for other companies, such as student loans, medical bills and utility accounts.
Which state do you live in?
Time limits on debt and some collection rules depend on your state.
888-899-6650 at a glance
- Number
- (888) 899-6650
- Belongs to
- Transworld Systems Inc. (TSI)
- What the line is for
- Contact phone on its New York City debt collection licences
- Kind of company
- Debt collection agency
- Last checked
- October 15, 2026
This is a regulator record: New York City lists 888-899-6650 as the contact phone on several Transworld Systems Inc. debt collection licences, including active ones.
Who uses 888-899-6650
New York City's Department of Consumer and Worker Protection publishes its list of licensed debt collection agencies. Several Transworld Systems Inc. licences in that list give 8888996650 as the contact phone, including active licences at its office in Mason, Ohio.[1]
TSI is a collection agency: it is usually collecting on behalf of the company you originally owed, not for itself. The written notice it sends should name that creditor.
Is a call from 888-899-6650 a scam?
The number itself belongs to Transworld Systems, but caller ID can be faked, so a familiar number on your screen proves nothing on its own.[2] Scammers copy real company numbers to look genuine.
- Do not give card or bank details to someone who called you.
- Hang up and call Transworld Systems back on a number you find yourself: use the number on a TSI letter you already have, or the contact details on tsico.com.
- A real debt collector can tell you who the account is with and how much is owed, and will not insist on gift cards, wire transfers or payment apps.[3]
You can paste a text or voicemail into our scam checker to look for the warning signs regulators describe.
What to do next
Do not agree to pay or confirm the debt on the call. Ask TSI to send the details in writing first.
- Ask for the validation notice. A debt collector must send a written notice naming the creditor and the amount, with the date by which you can dispute.[4] Our deadline calculator works out your date.
- Dispute in writing if anything looks wrong. Our debt validation letter guide explains what to send and why writing beats a phone call.
- Check whether the debt is too old. Use our time limit calculator before you pay anything on an old account.
- Too many calls? A collector is presumed to break the rules if it calls you about a debt more than seven times in seven days, or within a week of a phone conversation about it.[5]
Other Transworld Systems numbers
| Number | What it is for |
|---|---|
| (844) 980-2026[6] | Colorado office (listed on TSI's Know Your Rights page) |
Every number above comes from the linked source. Search any other number in our phone number lookup. All Transworld Systems numbers.
Common questions
Who is 888-899-6650?
Transworld Systems Inc. (TSI). New York City's debt collection licence records list it as the contact phone on several TSI licences. Caller ID can be faked, so call back on a number from TSI's website or your letter.
What is TSI?
Transworld Systems Inc. is a debt collection agency. It collects for other companies, so the debt usually started with a lender, school, hospital or utility.
Do I have to talk to TSI on the phone?
No. You can ask for everything in writing and dispute the debt by letter. A written dispute sent before your deadline is stronger than a phone call.
References
- Licensed debt collection agencies (NYC Department of Consumer and Worker Protection open data). City of New York.
- Caller ID spoofing. Federal Communications Commission.
- How do I tell if a debt collector is legitimate or a scam?. Consumer Financial Protection Bureau.
- 12 CFR 1006.34: Notice for validation of debts. Consumer Financial Protection Bureau.
- 12 CFR 1006.14: Harassing, oppressive, or abusive conduct. Consumer Financial Protection Bureau.
- Know your rights. Transworld Systems Inc..
Every phone number on this page links to the source we checked it against. We do not use caller-ID databases or user reports. Last checked October 15, 2026. Spotted an error? Email [email protected], and see our change history. This page is general information, not legal advice.